Author(s)

Jean-François Motte¹, Nicolas Galland¹, Jérôme Debray¹, Alban Ferrier^2,3, Philippe Goldner², Nemenja Lučić⁴, Shuo Zhang⁴, Bess Fang⁴, Yann Le Coq⁴, Signe Seidelin^1,5

¹Université Grenoble Alpes, CNRS, Grenoble INP and Institut Néel, Grenoble, France.
²PSL Research University, Chimie Paris Tech, CNRS, Institut de Recherche de Chimie Paris, Paris, France.
³Sorbonne Universités, UPMC Université Paris 06, Paris, France.
⁴LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Paris, France.
⁵Institut Universitaire de France, Paris, France.

Rare-earth ion doped crystals for hybrid quantum technologies are an area of growing interest in the solid-state physics community. We have earlier theoretically proposed a hybrid scheme of a mechanical resonator which is fabricated out of a rare-earth doped mono-crystalline structure. The rare-earth ion dopants have absorption energies which are sensitive to crystal strain, and it is thus possible to couple the ions to the bending motion of the crystal cantilever. This type of resonator can be useful for either investigating the laws of quantum physics with material objects or for applications such as sensitive force-sensors. Here, we present the design and fabrication method based on focused-ion-beam etching techniques which we have successfully employed in order to create such microscale resonators, as well as the design of the environment which will allow studying the quantum behavior of the resonators.

Rare-Earth Doped Crystals, Mechanical Resonators, Optomechanics, Quantum Physics, Strain-Coupling, Spectral Hole Burning, Focused-Ion-Beam Etching Techniques

Motte, J. , Galland, N. , Debray, J. , Ferrier, A. , Goldner, P. , Lučić, N. , Zhang, S. , Fang, B. , Coq, Y. and Seidelin, S. (2019) Microscale Crystalline Rare-Earth Doped Resonators for Strain-Coupled Optomechanics. Journal of Modern Physics, 10, 1342-1352. doi: 10.4236/jmp.2019.1011088.